Evidence map›Paper›PMID 35287611›Full record

ArticleBMC infectious diseases2022

The use of public transport and contraction of SARS-CoV-2 in a large prospective cohort in Norway.

Merete Ellingjord-Dale, Karl Trygve Kalleberg, Mette S Istre, Anders B Nygaard, Sonja H Brunvoll, Linn M Eggesbø, John Arne Dahl, Eyrun F Kjetland, Giske Ursin, Arne Søraas

Open access · goldAbstract read
In one paragraph

Article in BMC infectious diseases, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.3field-weighted citation impact, top 12% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

10 citing papers in PubMed, 19 citations in OpenAlex.

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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 2 institutions in 3 countries.

Merete Ellingjord-DaleDepartment of Microbiology, Oslo University Hospital, P.O. Box 4950, 0424, Oslo, Norway. merell@ous-hf.no.
Karl Trygve KallebergAge Labs AS, Oslo, Norway.
Mette S IstreDepartment of Microbiology, Oslo University Hospital, P.O. Box 4950, 0424, Oslo, Norway.
Anders B NygaardDepartment of Microbiology, Oslo University Hospital, P.O. Box 4950, 0424, Oslo, Norway.
Sonja H BrunvollDepartment of Microbiology, Oslo University Hospital, P.O. Box 4950, 0424, Oslo, Norway.
Linn M EggesbøDepartment of Microbiology, Oslo University Hospital, P.O. Box 4950, 0424, Oslo, Norway.
John Arne DahlDepartment of Microbiology, Oslo University Hospital, P.O. Box 4950, 0424, Oslo, Norway.
Eyrun F KjetlandCentre for Imported and Tropical Diseases, Department of Infectious Diseases, Oslo University Hospital, Oslo, Norway.
Giske UrsinCancer Registry of Norway, Oslo, Norway.
Arne SøraasDepartment of Microbiology, Oslo University Hospital, P.O. Box 4950, 0424, Oslo, Norway.
Oslo University Hospital · NOUniversity of Oslo · NO

Funding

Helse Sør-Øst RHF Internal fundingthe Research Council of Norway 324274
6 · The paper itself

Abstract

backgroundFor many people public transport is the only mode of travel, and it can be challenging to keep the necessary distances in such a restricted space. The exact role of public transportation and risk of SARS-CoV-2 transmission is not known.

methodsParticipants (n = 121,374) were untested adult Norwegian residents recruited through social media who in the spring of 2020 completed a baseline questionnaire on demographics and the use of public transport. Incident cases (n = 1069) had a positive SARS-CoV-2 polymerase chain reaction test registered at the Norwegian Messaging System for Infectious Diseases by January 27, 2021. We investigated the association between the use of public transport and SARS-CoV-2 using logistic regression. Odds ratios (ORs) with 95% confidence intervals (CIs) adjusted for age, calendar time, gender, municipality, smoking, income level, fitness and underlying medical conditions were estimated. Frequency of the use of public transport was reported for 2 week-periods.

resultsBefore lockdown, those who tested positive on SARS-CoV-2 were more likely to have used public transport 1-3 times (OR = 1.28, CI 1.09-1.51), 4-10 times (OR = 1.49, CI 1.26-1.77) and ≥ 11 times (OR = 1.50, CI 1.27-1.78, p for trend < 0.0001) than those who had not tested positive.

conclusionThe use of public transport was positively associated with contracting SARS-CoV-2 both before and after lockdown.

Indexed as

COVID-19SARS-CoV-2AdultCohort StudiesCommunicable Disease ControlHumansProspective StudiesPreventionProspective cohortSARS-CoV-2TransmissionUse of public transport

Identifiers

PMID35287611
PMCPMC8919146
OpenAlexW4220951406

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.